Gold ended weaker touching a near three-month low as a dollar rise and uncertainty about how U.S. President Barack Obama's proposal to limit risk taking by banks could affect gold trading. Silver fell more than gold on a relative basis on worries about demand on signs the U.S. economic is not picking up rapidly.

Crude ended lower for the third consecutive session pressured by sliding equities and persistent demand worries. Natural-gas prices extended losses on a mild weather outlook and robust production, hovering near 240 after a government report showed a smaller-than-expected draw from gas stocks last week.